Companies, etc.

Notes

Back cover also mentions ГОСТ 28376-89, ГОСТ 27667-88, ГОСТ Р 51121-97 - these are not cat# , but industry standards on CD manufacturing used in Russia. All manufactured CDs should meet these standards.

Front cover usually has a sticker, which depending on the sunlight's angle of incidence changes between Zebra Studio (2) and Digital Records (6) logos with different background.